stehling



y 1930. J. J. STE'HLINYG 5 REVOLVING SCREEN AND CONVEYER Filed Nov. 10, 1927 2 Sheets-Sheet 1 w I INVENTOR. BY W Jaw J 7,

ATTORNEYS y 1930. J. J. STEHLING 1,769:655

REVOLVING SCREEN AND CONVEYER Filed Nov. 10, 1927 2 Sheets-Sheet 2 INVENTOR.

Y WWW 1477M ATTORNEY6 JQ/SEPHYJ'. sirnnnme, I W

' 00., or MILWAUKEE, Wisconsin, A CORPORATION or wIsooNsIn' r This invention relates; to improvements the like.

and all 'equivalentsthereof. V

Patented July 1," 1930 Y int srArss REVOLVING scant-in Ann CONVEYER Application filed November 10, 1927. Serial No. 2s2;s50.-

in revolving screens and conveyers, particularly adapted for use n connection with the disposal of sewage from tanneries and The sewage from tanneries contains large amounts of solid animal matter, as flesh, sk n, hair, .etc., and as laws prevent the disposal of such matter with the sewage, means must be provided for removing from the liquid sewage'the solid matter referred to before the liquid sewagepasses from the building into the municipal system. c

It is, therefore, the primary object of the present invention to provide a sewagescreen and conveyer whichwill eliminate the solid matterufrom the liquid sewage s i j A furthenjobject of the invention is to provide a sewage screen and conveyer. which will, remove solid matter from liquid sewg age and convey it'toa desired .positionfor convenient handling. I v

A further. object of the invention is to provide. adevice of the vclass described having, means for. automatically cleaning-the conveyer and keepingrit free of tenacious solid matter, beyond the point where the load isdeliveredn: e p .further object of the invention is to provide a: revolving. screen and ,conveyer having'a very simple drive arrangement.

A further object offgthe invention isr to providea device. of the classdescribed in which the .conveyer extends around ,and 'serves as the driving means: forc th e ,screen. -A further, object of the ,.invention-;is=to provide a revolving screen and 'conveyer which.:.is of very simple COIlStIuClllO1l, ui 5 strongjand durable,'is efficient in operation,

and isgwell adapted for the purposes-dc scribed,

With theabove and other objects in view, the invention consists of the improved re- .volving screen and conveyer, and; its gp arts and combinations as set forthin the claims,

' In the accompanying drawing, in -which the same reference characters indicate the same parts inall of the viewsz; I I z-Eig. is a; longitudinal sectional-view through a drainage pit, with the improved revolving screen and conveyer V mounted therein, the view being indicatedon the line 11 oflF-ig. 2;

Fig. 2=isa cross-sectional view of the 5 v indicates a waste or. sewage .disposalpit,

such as is commonin tanneriesand the like for the drainage. I 1 w l I Q The pit ispreferably formed of concrete andv one end portion thereofhas a comparaor'MIIiWAUKEE, wIscoNsI N, iASSIGNQR Too -Ins. n. srnHLiivG' j tively shallow compartmentd defined bya raised bottomuportion 7 and .'a vertical par tition. 8, as shown .in Fig. l. One of the walls of the pit, adjacent the compartment 6, isprovided: with an opening 9 at ja prede termined distance above the bottom 6., and said opening allows an inflow 0f sewage through suitable pipes. The partition ,8.i s

formed withalower opening 10 communi oating with a large compartment 11,0f fthe pit, said latter compartment having a curved bottom portionf1 2r -The; compartment 1 1 is divided longitudinally by a partition 13 formed with a U-shaped slotted opening, 1a in; which is removablydisposed the "bearing ringl 5 of a revoluble screen 16., (The screen 16 is mountedffast on a shaft 17. vwhichis journaled at its end-portions in bearingslS mounted inthepit. The. screen' is sopos1; .tioned that the sewage :must" pass ther throughto flow into aniadjacent pit outlet chamber. 19,' vvhich is separated fromthe l argecompartment 11 by'fthe partitio 13. Hence, the solid matter willbe screened,

and only clear liquid will enter. the chamber; 19 andgwillhe dischargedtherefrom through an'outlet opening20, g Obviously, ,solid matter wlll accmnulate withinfthe pit compartment 11, and/an important vfeature of the invention resides the means employed for remov ng the sol d matter from said compartment. .For that purpose, an endless conveyer iszuutilized having. its lower end portion w th n the p t chains being extended over said sprocket Spaced transverse lifting members connect-' ing said chains, a support exteriorly of the pit and adapted to convey substantial amounts of solid material from the pit, a

driven shaft revolubly carried thereby, a pair of spaced sprocket wheels mounted on said shaft, the outer end portions of said wheels, and a depending scraping member pivotally mounted on said shaft and having a transverse blade portion for scraping engagement with said lifting members.

In testimony whereof, I aflix my signature.

JOSEPH J. STEHISING. v 

